HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers
in the root of that Create a new DWORD
Name it TdrDelay (case sensitive)
assign it a hexdecimal value of A
OR
assign it a decimal value of 10 - i did this one.

and presto.

From my understanding what it does is - Windows talks to the GPU on a regular basis to ensure its there and working correctly, think its every 2 secs or milli secs or something like that. however a game like BF3 when the GPU is at 98 - 99% usage it doesn't have time to talk to windows - so windows assumes the GPU is not responding and restarts it and hence you get a brrrrrrrrrrrrr sound and the game crashes.

Increasing that delay to 10 - gives it enough time to talk to each other.

When i did my research into this item i found the increasing it above 10 - could cause a negaitve effect as well - eg: still crashing - and keeping it below 4 also crashed certain games as well.....

Please do some research into this before you "just do it". i dont want to be held responsible for destroying your machine!!! - i too was warned when doing so. but i had just done a fresh install of windows so not fussed of losing anything on the drive and i am under the impression changing items in regedit effects software only and not hardware - someone confirm this?

dont forget these 7970's very tempramental when it comes to heat - on furmark when i first got them i saw the cards in the high 70's degree's... after 12.7 drivers they haven't gone over the 70 point at all.
alot of factors to consider. my case still lieing flat on the floor since i cannot screw the dam monsters into the case!!! and if i put the machine upright (standard position) those cards will eventually come out! the things we do to get a machine going.

I believe someone said they fixed some sound related lockups by Disabling AMD / ATI's HD Audio Device in the Device Manager.... they may conflict with some Sound Processors if on the same IRQ.
I have 4 Audio Controllers and dont have any problems though
AMD High Definition Audio Device
Black Magic Audio
Ceton Audio Device
Creative SB X-Fi

not sure about that one - i diasbled everything in my playback sound devices - but when installing the AMD drivers - i only did the express ones. I think your right with that as well since i remember reading that from someone a long way back who was trying to get several monitors going with sound and those settings were causing the issue and after disabling that resolved his issue.

Doing some preliminary testing on my new Sapphire 7970 OC's (to make sure they are good to go before installing the water blocks) and the first card is a beast! ASIC of 85.6% and a stock voltage of just 1049mV on BIOS 1. This card just did Heaven at 1200MHz and just 1125mV which is 75 mV lower than what my 7970 Lightning did! I'm hoping she'll do 1300+MHz on air...

One thing I do miss about the Lightnings though is the aesthetics. These Sapphires look pretty cheap in comparison and the top card already has a pronounced droop mounted in my 600T. Glad I got a TJ11 where droop isn't a problem!Edited by Majin SSJ Eric - 7/3/12 at 8:47pm

Doing some preliminary testing on my new Sapphire 7970 OC's (to make sure they are good to go before installing the water blocks) and the first card is a beast! ASIC of 85.6% and a stock voltage of just 1049mV on BIOS 1. This card just did Heaven at 1200MHz and just 1125mV which is 75 mV lower than what my 7970 Lightning did! I'm hoping she'll do 1300+MHz on air...
One thing I do miss about the Lightnings though is the aesthetics. These Sapphires look pretty cheap in comparison and the top card already has a pronounced droop mounted in my 600T. Glad I got a TJ11 where droop isn't a problem!

1200 Mhz on 1.125v. thats a nice chip. how does the 2nd card fare on air. also post more details with pics and game performance when the cards are water cooled and maxed out on OCs.

Still have the second card turned off on my RIVE until I can establish a max OC on the first. I will do tons of testing once my water cooled setup is done but it'll still be another couple of weeks before I can source all of my parts...

1200 Mhz on 1.125v. thats a nice chip. how does the 2nd card fare on air. also post more details with pics and game performance when the cards are water cooled and maxed out on OCs.

Most of the Sapph OC's will do 1200 at or near stock volts. Whether they can actually hit 1300 is a whole other story. I HAD two OC's, had. No 1300 no care. But if you are on air, they're probably the best air cards I've come across.

Quote:

Originally Posted by Majin SSJ Eric

Still have the second card turned off on my RIVE until I can establish a max OC on the first. I will do tons of testing once my water cooled setup is done but it'll still be another couple of weeks before I can source all of my parts...

I thought I remember someone mailing AMD about stock volts on 7970s ages ago (just after release iirc) and they debunked the idea that lower stock volts = better? Was around the time where people were fishing for grey power connecters

I thought I remember someone mailing AMD about stock volts on 7970s ages ago (just after release iirc) and they debunked the idea that lower stock volts = better? Was around the time where people were fishing for grey power connecters

My ideal card is a 73% asic card that can hit 1300/1750. I have two that fit that requirement, though all four can rock that frequency. Anyone wanna trade my 80% plus cards?

I thought I remember someone mailing AMD about stock volts on 7970s ages ago (just after release iirc) and they debunked the idea that lower stock volts = better? Was around the time where people were fishing for grey power connecters

My ideal card is a 73% asic card that can hit 1300/1750. I have two that fit that requirement, though all four can rock that frequency. Anyone wanna trade my 80% plus cards?

Lol. I've got a 76.7% ASIC that does 1300 on water. Too bad I can't afford water and now want to trade it for a quieter card. I figure nobody will ever bite anyway, so I haven't even bothered with a marketplace ad, lol.

I thought I remember someone mailing AMD about stock volts on 7970s ages ago (just after release iirc) and they debunked the idea that lower stock volts = better? Was around the time where people were fishing for grey power connecters

My ideal card is a 73% asic card that can hit 1300/1750. I have two that fit that requirement, though all four can rock that frequency. Anyone wanna trade my 80% plus cards?